RE: Index clustering factor
Date: Wed, 23 Jan 2008 13:37:47 -0700
Thank you for your suggestions! There was indeed column conversion occurring causing the index not to be used.
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[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Jonathan Lewis Sent: Thursday, January 10, 2008 12:10 AM To: oracle-l_at_freelists.org
Subject: Re: Index clustering factor
The optimizer cannot ignore the index hint for that query. Therefore the hint is illegal.
The first thing to check is whether you have a column coercion issue. What are the types of the columns and of the input variables - and what does OEM tell you about the run-time predicates ?
Author: Cost Based Oracle: Fundamentals
The Co-operative Oracle Users' FAQ
- Original Message ----- From: "Orysia Husak" <Orysia.Husak_at_apollogrp.edu> Subject: RE: Index clustering factor
The statement is expected to fetch only 1 or 2 rows. The default Oracle gather_stats generates a histogram size auto.
We've provided an index hint in the SQL and Oracle sill ignores the
>Our query is :
>Select * from tableA where fielda=:A and fieldb=:B
>We have an index on tableA (fielda, fieldb), but Oracle isn't using the